If you've been waiting for the iPod-compatible Nike+ heart rate monitor to really start…
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Worn around the chest, the Polar WearLink+ sends the heart-rate to the Nike+ kit, which is then transferred to the NikePlus.com service for tracking against all the other stats. So now you'll know just how hard your little heart is working when you're jogging those 15kms.

It's also compatible with other Polar fitness gear, if you happen to already own some. On sale this month in the US, and Europe in July, it'll cost about $50. [BusinessWire]